April 1987

April 1987: 258 companies

2 April 1987 13 companies

3 April 1987 14 companies

4 April 1987 11 companies

6 April 1987 11 companies

7 April 1987 14 companies

8 April 1987 12 companies

9 April 1987 13 companies

10 April 1987 16 companies

11 April 1987 12 companies

13 April 1987 14 companies

14 April 1987 17 companies

15 April 1987 11 companies

16 April 1987 8 companies

21 April 1987 14 companies

22 April 1987 5 companies

23 April 1987 7 companies

24 April 1987 9 companies

25 April 1987 2 companies

27 April 1987 15 companies

28 April 1987 13 companies

29 April 1987 17 companies

30 April 1987 10 companies